Gains up to: +70 hp | +92 lb ft torque
Banks PowerPack features a revolutionary new Ram-Air intake system* that delivers greater airflow and air density for more power, plus an OttoMind Programmer (optional) for significantly improved response. A pair of stainless-steel, tuned-length TorqueTubes exhaust manifolds provide stunning torque output when you want it. Pass, merge and climb as you please: your PowerPacked coach won't break a sweat. Achieve best gains of +70 hp and +92 lb-ft torque at the rear wheels, with better fuel economy—and never require high octane.
Important: Some vehicle configurations require an extension kit for proper fit.
*Note: Banks Ram-Air intake system available for W-Series only
Gasoline: GM 8.1L Workhorse, '01-06
Test vehicle: 2004 Workhorse W-22, GM 8.1L V-8
Transmission: 5-speed Allison